Multi-joint lighting device including tension arm assembly

Abstract

The multi-joint lighting device including a tension arm assembly according to the present invention comprises: a lighting unit including a light emitting module for irradiating light in a target direction; the head arm assembly is connected with the lighting unit; the base arm assembly is connected with a stabilizing base fixed at a preset stabilizing place; and a tension arm assembly, one side of which is tiltably connected to the head arm assembly and the other side of which is tiltably connected with respect to the base arm assembly, and which provides a tension that compensates the dead weight of the head arm assembly and the lighting unit according to the tilt angle of the head arm assembly, therefore, the free locking height adjusting action of the lighting unit is reflected.

Description

Technical Field

[0001] The present invention relates to a multi-joint lighting device, and more particularly, to a multi-joint lighting device which can include a tension arm assembly to easily implement a free stop height adjustment action of a lighting unit. Background Art

[0002] Shadowless lamps are special lighting devices used during surgery. They provide concentrated bright light to the surgical site, helping doctors or surgical teams to ensure a clear field of vision and perform correct operations during the operation.

[0003] In addition to providing basic functions such as adjusting lighting intensity and color temperature, shadowless lamps also provide the function of freely adjusting lighting position and angle, so that doctors or surgical teams can ensure the best field of view at a specific angle and apply necessary lighting.

[0004] To this end, the shadowless lamp is connected by a plurality of arms arranged on the ceiling, wall, etc., so that the lighting is located at a desired position and then fixed. In general, a three-axis arm or a two-axis arm is most commonly used.

[0005] In the case of a three-axis arm, since the lighting can be adjusted with three degrees of rotational freedom, it has the advantage of being easy to control the position and easily cope with a variety of situations.

[0006] However, the three-axis arm has a disadvantage in that it is difficult to install in a space with a low ceiling due to its characteristics.

[0007] On the contrary, although the two-axis arm has the advantage of being able to be installed in a space with a low ceiling, it has limitations in terms of the position of the control because the rotational freedom with which the lighting can be adjusted is only two.

[0008] In particular, when a controller or a display is attached to the arm, as the up and down height is adjusted, the dual-axis arm changes the angle of the controller or the display according to the changed angle, which causes a disadvantage of being inconvenient to use. Summary of the invention

[0009] Technical issues

[0010] The present invention is proposed to solve the above-mentioned problems of the prior art, and its purpose is to provide a multi-joint lighting device that can be easily installed in a space with a low ceiling and can also conveniently control the lighting position.

[0011] Problems of the present invention are not limited to the problems mentioned above, and those skilled in the art in the art to which the present invention belongs can clearly understand other problems not mentioned through the following description.

[0012] Solutions to the problem

[0013] The multi-joint lighting device including a tension arm assembly of the present invention for achieving the above-mentioned purpose includes: a lighting unit including a light-emitting module for irradiating light in a target direction; a head arm assembly connected to the lighting unit; a base arm assembly connected to a stabilizing base fixed to a preset stable location; and a tension arm assembly, one side of the tension arm assembly being tiltably connected to the head arm assembly and the other side being tiltably connected relative to the base arm assembly, and providing tension for compensating for the self-weight of the head arm assembly and the lighting unit according to the tilt angle of the head arm assembly, so as to reflect the free stop height adjustment action of the lighting unit.

[0014] At this time, the head arm assembly can be rotatably connected to the tension arm assembly with a rotation axis in a direction parallel to the extension direction of the tension arm assembly as the center. In this case, the head arm assembly is provided with a slip ring module at the connection part of the tension arm assembly, and the slip ring module maintains the electrical connection between the head arm assembly and the tension arm assembly.

[0015] Moreover, the lighting unit can be rotatably connected to the head-arm assembly with the horizontal rotation axis as the center. In this case, a slip ring module is provided at the connection part between the lighting unit and the head-arm assembly, and the slip ring module maintains the electrical connection between the lighting unit and the head-arm assembly.

[0016] Meanwhile, the present invention may further include a display unit, which is disposed on the head-arm assembly and is used to display a specified image, and is formed in a manner of rotating relative to the head-arm assembly together with the lighting unit.

[0017] The display unit may include: a gyro sensor for detecting an angle formed by the display unit relative to a gravity direction; and an image control unit for controlling the image transmitted by the display unit in a rotational manner based on a detection value of the gyro sensor.

[0018] On the other hand, the tension arm assembly may include: a supporting unit, which provides a supporting force between the head arm assembly and the base arm assembly; a tension providing unit, which is arranged side by side with the supporting unit and provides tension to compensate for the dead weight of the head arm assembly and the lighting unit according to the inclination angle of the head arm assembly; a first joint unit, which is arranged in a manner connected to the head arm assembly, and has a first rotating axis rotatably fixedly arranged on one side of the tension providing unit at a first location, and a second rotating axis rotatably fixedly arranged on one side of the support unit at a second location separated from the first location; and a second joint unit, which is arranged in a manner connected to the base arm assembly, and has a third rotating axis rotatably fixedly arranged on the other side of the tension providing unit at a third location, and a fourth rotating axis rotatably fixedly arranged on the other side of the support unit at a fourth location separated from the third location.

[0019] Among them, the tension providing unit may include: an axis core extending in a direction parallel to the supporting unit, with the first rotating axis formed on one side of the axis core, and the second rotating axis formed on the other side, and formed in a manner of linear movement toward one side or the other side; an elastic component, arranged in a manner of surrounding a portion of the axis core and formed in an elastic manner to provide resistance to compression force; a first stopping component, arranged on one side of the elastic component in a manner of moving along the axis core, and restricted to prevent movement toward one side further than any first reference point formed on the axis core; and a second stopping component, arranged on the other side of the elastic component in a manner of moving along the axis core, and restricted to prevent movement toward the other side further than any second reference point formed on the axis core.

[0020] Furthermore, the tension providing unit may further include a unit casing, which is provided so as to surround the shaft core and the elastic member and is movable together with the shaft core.

[0021] Furthermore, the second joint unit may include: a first joint structure having the third location for fixing the third rotating shaft; and a second joint structure having the fourth location for fixing the fourth rotating shaft and being combined with the first joint structure.

[0022] At the same time, the second joint unit may also include a connecting shaft, a portion of which is rotatably connected to the base arm assembly with the vertical rotation axis as the center, and the remaining portion passes through the first joint structure to be fixed to the second joint structure.

[0023] Effects of the Invention

[0024] The multi-joint lighting device including a tension arm assembly of the present invention for solving the above-mentioned problems includes a head arm assembly tiltably connected on one side and a tension arm assembly tiltably connected on the other side relative to a base arm assembly, thereby having the advantage of being able to freely change the height of the lighting unit even in a space with a low ceiling.

[0025] In particular, the tension arm assembly can provide tension to compensate for the deadweight of the head arm assembly and the lighting unit according to the tilt angle of the head arm assembly, thereby easily realizing a free stop height adjustment action of the lighting unit.

[0026] The effects of the present invention are not limited to the effects mentioned above, and those skilled in the art to which the present invention pertains can clearly understand other effects not mentioned through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A diagram showing the state of a multi-joint lighting device according to an embodiment of the present invention.

[0028] Figure 2 A diagram showing the driving degrees of freedom of a multi-joint lighting device according to an embodiment of the present invention.

[0029] Figure 3 This is a diagram showing the structure of rotational drive of each part in a multi-joint lighting device according to an embodiment of the present invention.

[0030] Figure 4 This is a diagram showing a state of height change of a lighting unit in a multi-joint lighting device according to an embodiment of the present invention.

[0031] Figure 5 This is a diagram showing the state of a gyro sensor provided in a display unit in a multi-joint lighting device according to an embodiment of the present invention.

[0032] Figure 6 and Figure 7 This is a diagram showing the components of the tension arm assembly in a multi-joint lighting device according to an embodiment of the present invention in an exploded manner.

[0033] Figure 8 The figure is a diagram showing in detail the second joint unit of the tension arm assembly in the multi-joint lighting device according to one embodiment of the present invention.

[0034] Fig. 9 and Fig.10 The figure shows the locking structure of the tension arm assembly in the multi-joint lighting device according to one embodiment of the present invention.

[0035] Description of Reference Numerals

[0036] 5: Stable base

[0037] 10: Base arm assembly

[0038] 100: Tension arm assembly

[0039] 110: External framework

[0040] 120: Support unit

[0041] 130: Tension providing unit

[0042] 140: Load spreading bracket

[0043] 150: First joint unit

[0044] 160: Second connector unit

[0045] 170: First joint structure

[0046] 180: Second joint structure

[0047] 190: Connecting shaft

[0048] 200: Head and arm assembly

[0049] 205: Slip ring module

[0050] 240: Display unit

[0051] 244: Image Control Department

[0052] 245: Gyro sensor

[0053] 300: Lighting unit DETAILED DESCRIPTION

[0054] In this specification, when a certain structural element (or region, layer, part, etc.) is mentioned as being "located", "connected", or "combined with" other structural elements, this means that it can be directly configured / connected / combined with the other structural elements or a third structural element can be configured between them.

[0055] The same additional reference numerals refer to the same structural elements. In addition, in the drawings, the thickness, proportion and size of the structural elements are exaggerated for the effective description of the technical content.

[0056] "And / or" includes all the related structures that can define more than one structure.

[0057] The terms first, second, etc. may be used to describe a variety of structural elements, but the structural elements should not be limited by the terms. The terms are only used to distinguish one structural element from other structural elements. For example, without departing from the scope of protection of the present invention, the first structural element may be named as the second structural element, and similarly, the second structural element may be named as the first structural element. As long as there is no clear different meaning in the context, the expression of the singular includes the expression of the plural.

[0058] In addition, the terms "lower", "lower side", "upper", "upper side" and the like are used to explain the relationship between the structures shown in the drawings. The terms are relative concepts and are explained based on the directions shown in the drawings.

[0059] Unless otherwise defined, all terms (including technical or scientific terms) used in this specification have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. Furthermore, commonly used terms that are the same as those defined in dictionaries should be interpreted as having the same meaning as that in the relevant technical context, and are clearly defined herein unless they are interpreted as being too idealistic or formalistic.

[0060] It should be understood that terms such as “including” or “having” are intended to specify the existence of features, numbers, steps, actions, structural elements, components or combinations thereof recorded in the specification, rather than excluding the existence or additional possibilities of one or more other features or numbers, steps, actions, structural elements, components or combinations thereof.

[0061] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0062] Figure 1 1 is a diagram showing a state of a multi-joint lighting device according to an embodiment of the present invention. Figure 2 A diagram showing the driving degrees of freedom of a multi-joint lighting device according to an embodiment of the present invention.

[0063] like Figure 1 and Figure 2 As shown, a multi-joint lighting device according to an embodiment of the present invention includes a lighting unit 300 , a head arm assembly 200 , a base arm assembly 10 and a tension arm assembly 100 .

[0064] The lighting unit 300 includes a light emitting module that radiates light in a target direction.

[0065] The lighting unit 300 of the present embodiment is a medical shadowless lamp and has a form including a frame having a circular cross section and a plurality of light emitting modules for irradiating light toward one side of the frame.

[0066] However, the form of this embodiment is only an example of the form used as the lighting unit 300. The lighting unit 300 can not only be used for various purposes other than medical use, but also the detailed form and type of light-emitting module can be designed and changed without restriction.

[0067] The head-arm assembly 200 is connected to such a lighting unit 300 .

[0068] Furthermore, the lighting unit 300 can be rotatably connected to the head arm assembly 200 around a horizontal rotation axis.

[0069] In this embodiment, the head arm assembly 200 is connected to the side of the lighting unit 300 and extends along the periphery of the lighting unit 300 in an arc shape.

[0070] However, this is also an embodiment, and the shape of the head-arm assembly 200 can be embodied in a variety of ways.

[0071] The base arm assembly 10 is connected to a stabilizing base 5 fixed to a preset stabilizing location such as a ceiling or a wall.

[0072] The stabilizing base 5 used in the present embodiment is installed on the ceiling, and the base arm assembly 10 is rotatably connected to the stabilizing base 5 around a vertical rotation axis.

[0073] The tension arm assembly 100 is configured to connect the head arm assembly 200 and the base arm assembly 10 to each other. Specifically, one side of the tension arm assembly 100 is tiltably connected to the head arm assembly 200, and the other side is tiltably connected to the base arm assembly 10.

[0074] Therefore, the present invention has the advantage that the height of the lighting unit can be freely changed even in a space with a low ceiling by means of the tension arm assembly 100 .

[0075] At this time, one side and the other side of the tension arm assembly 100 are directions set for the convenience of explanation. In this specification, one side of the tension arm assembly 100 is defined as the direction connected to the head arm assembly 200, and the other side of the tension arm assembly 100 is defined as the direction connected to the base arm assembly 10.

[0076] Furthermore, the head arm assembly 200 can be rotatably connected to the tension arm assembly 100 around a rotation axis in a direction parallel to the extension direction of the tension arm assembly 100 .

[0077] Meanwhile, the other side of the tension arm assembly 100 may be rotatably connected to the base arm assembly 10 with the vertical rotation axis as the center.

[0078] Moreover, such a tension arm assembly 100 can provide tension to compensate for the deadweight of the head arm assembly 200 and the lighting unit 300 according to the tilt angle of the head arm assembly 200 , so as to realize a free stop height adjustment action of the lighting unit 300 .

[0079] The detailed structure of the tension arm assembly 100 will be described later.

[0080] Figure 3 This is a diagram showing the structure of rotational drive of each part in a multi-joint lighting device according to an embodiment of the present invention.

[0081] like Figure 3 As shown, the lighting unit 300 can be rotatably connected to the head arm assembly 200 with the horizontal rotation axis as the center, and the head arm assembly 200 can be rotatably connected to the tension arm assembly 100 with the rotation axis in the direction parallel to the extension direction of the tension arm assembly 100 as the center.

[0082] In this embodiment, the head-arm assembly 200 includes a curved shaft 210 , and the curved shaft 210 is formed to extend in an arc shape along the periphery of the lighting unit 300 .

[0083] Furthermore, the head arm assembly 200 includes a first rotating portion 220 rotatably connecting the curved shaft 210 and the tension arm assembly 100 , and a second rotating portion 230 rotatably connecting the curved shaft 210 and the lighting unit 300 .

[0084] At this time, a slip ring module 205 may be provided on the first rotating part 220 which is the connecting part between the head arm assembly 200 and the tension arm assembly 100 and the second rotating part 230 which is the connecting part between the lighting unit 300 and the head arm assembly 200. The slip ring module 205 is used to maintain the electrical connection between the objects connected to each other.

[0085] At the same time, the multi-joint lighting device of this embodiment further includes a display unit 240 , which is disposed on the head-arm assembly 200 for displaying a specified image and is formed in a manner of rotating relative to the head-arm assembly 200 together with the lighting unit 300 .

[0086] In the past, when a controller or display was attached like this, the angle of the controller or display changed depending on how the lighting was adjusted, which made it inconvenient to use.

[0087] Figure 4 This is a diagram showing a state of height change of a lighting unit in a multi-joint lighting device according to an embodiment of the present invention.

[0088] like Figure 4As shown, in the case of the present invention, one side of the tension arm assembly 100 can be tiltably connected to the head arm assembly 200, and the other side can be tiltably connected relative to the base arm assembly 10. Therefore, regardless of the height of the lighting unit 300, the display unit 240 can always maintain a horizontal state or a specified angle relative to the horizontal plane.

[0089] and, Figure 5 This is a diagram showing the state of the gyro sensor 245 provided in the display unit 240 in the multi-joint lighting device according to one embodiment of the present invention.

[0090] like Figure 5 As shown, in this embodiment, the display unit 240 includes a first module frame 241 and a second module frame 242 which are combined to form an internal space, and a display module 243 for transmitting images is disposed in the second module frame 242 .

[0091] Moreover, the display unit 240 of this embodiment may include: a gyro sensor 245, which is arranged in the internal space formed by the first module frame 241 and the second module frame 242, and is used to detect the angle formed by the display unit 240 relative to the direction of gravity; and an image control unit 244, which controls the image transmitted by the display unit 240 in a rotational manner based on the detection value of the gyro sensor 245.

[0092] That is, as described above, the present embodiment can keep the display unit 240 in a horizontal state or at a specified angle relative to the horizontal plane regardless of the height of the lighting unit 300. However, unlike this, even when the angle of the display unit 240 is changed, the image control unit 244 can control the image transmitted from the display unit 240 in a rotational manner, and is convenient to use.

[0093] Hereinafter, the detailed structure of the tension arm assembly 100 will be described.

[0094] Figure 6 and Figure 7 This is a diagram showing the components constituting the tension arm assembly 100 in a multi-joint lighting device according to an embodiment of the present invention in an exploded manner.

[0095] like Figure 6 and Figure 7 As shown, in this embodiment, the tension arm assembly 100 includes a supporting unit 130 , a tension providing unit 120 , a first joint unit 150 , a second joint unit 160 , and an external frame 110 .

[0096] The supporting unit 130 is configured to provide a supporting force between the head arm assembly 200 and the base arm assembly 10 .

[0097] In this embodiment, the support unit 130 includes an extending support member 131 , which extends in a length direction between the head arm assembly 200 and the base arm assembly 10 and provides a supporting force.

[0098] Furthermore, a second rotation shaft 132 is provided on one side of the extension support member 131 , and a fourth rotation shaft 133 is provided on the other side.

[0099] The tension providing unit 120 is disposed side by side with the supporting unit 130 , and performs the role of providing tension for compensating for the self-weight of the head arm assembly 200 and the lighting unit 300 according to the tilt angle of the head arm assembly 200 .

[0100] To this end, in the present embodiment, the tension providing unit 120 includes in detail a shaft core 124 , an elastic component 123 , a first stopping component 125 , a second stopping component 126 and a unit housing 121 .

[0101] The shaft core 124 extends in parallel with the support unit 130, and has a first rotation axis 127 formed on one side and a second rotation axis 128 formed on the other side. Also, the shaft core 124 may be formed between the head arm assembly 200 and the base arm assembly 10 in a manner of linearly moving toward one side or the other.

[0102] The elastic member 123 is provided so as to surround the circumference of the portion of the shaft core 124 and is formed so as to have elasticity to provide resistance to the compressive force.

[0103] Furthermore, the first stopper 125 is provided on one side of the elastic member 123 so as to be movable along the shaft core 124 . However, the first stopper 125 is restricted so as not to move to one side beyond any first reference point formed on the shaft core 124 .

[0104] At this time, the first reference point may be set at a region of the entire length of the shaft core 124 that is close to the head-arm assembly 200 .

[0105] Furthermore, the second stopper member 126 is provided to be movable along the shaft core 124 . However, the second stopper member 126 is restricted so as not to move to the other side than any second reference point formed on the shaft core 124 .

[0106] At this time, the second reference point may be set at a region of the entire length of the shaft core 124 that is close to the base arm assembly 10 .

[0107] Furthermore, the unit case 121 may be provided so as to surround the shaft core 124 and the elastic member 123 , and may be movable together with the shaft core 124 .

[0108] Furthermore, the unit housing 121 can restrict the first stopper 125 from moving further to one side at the first reference point, and restrict the second stopper 126 from moving further to the other side at the second reference point.

[0109] Therefore, when the head arm assembly 200 is tilted upward relative to the tension arm assembly 100 or the tension arm assembly 100 is tilted downward relative to the base arm assembly 10, the shaft core 124 moves linearly toward the head arm assembly 200, and the second stopping component 126 moves together with the shaft core 124 in a state fixed to the second reference point.

[0110] Finally, the first stopping member 125 can move relatively from the first reference point to the other side, and the elastic member 123 is compressed to provide tension for compensating for the self-weight of the head-arm assembly 200 and the lighting unit 300 .

[0111] Furthermore, when the head arm assembly 200 is tilted downward relative to the tension arm assembly 100 or the tension arm assembly 100 is tilted upward relative to the base arm assembly 10, the shaft core 124 moves linearly toward the base arm assembly 10, and the first stopper 125 moves together with the shaft core 124 while being fixed to the first reference point.

[0112] Finally, the second stopping member 126 can move relatively to one side from the second reference point, and the elastic member 123 is compressed to provide tension for compensating for the self-weight of the head-arm assembly 200 and the lighting unit 300 .

[0113] On the other hand, during such tilting driving, the load is concentrated on the support unit 130. Therefore, in order to disperse the load concentrated on the support unit 130 to the tension providing unit 120 side, the present embodiment may further include a load distributing bracket 140 surrounding the support unit 130 and the tension providing unit 120 and fixing them to each other.

[0114] A through hole for inserting the support unit 130 and the tension providing unit 120 is inserted into the load distributing bracket 140 , and the load distributing bracket 140 may include a first fixing portion 141 for surrounding the tension providing unit 120 and a second fixing portion 142 for surrounding the support unit 130 .

[0115] The first joint unit 150 is arranged in a manner connected to the head arm assembly 200, and is rotatably fixed to the first rotating shaft 127 on one side of the tension providing unit 120 at a first location, and is rotatably fixed to the second rotating shaft 132 on one side of the supporting unit 130 at a second location separated from the first location.

[0116] Moreover, in this embodiment, the first joint unit 150 may include: a first joint component 151 connected to the first rotating shaft 127 and the second rotating shaft 132 ; and a rotating joint component 152 rotatably connected to the first joint component 151 .

[0117] The second joint unit 160 is arranged in a manner connected to the base arm assembly 10, and is rotatably fixed to the third rotating shaft 128 on the other side of the tension providing unit 120 at a third location, and is rotatably fixed to the fourth rotating shaft 133 on the other side of the supporting unit 130 at a fourth location separated from the third location.

[0118] Figure 8 FIG. 1 is a diagram showing in detail the second joint unit 160 of the tension arm assembly 100 in the multi-joint lighting device according to an embodiment of the present invention.

[0119] like Figure 8 As shown, in this embodiment, the second joint unit 160 may be formed in a form in which the first joint structure 170 , the second joint structure 180 , and the connection shaft 190 are combined with each other.

[0120] The first joint structure 170 includes: a second-first joint component 171, which is formed with a third location for fixing the third rotating shaft 128; and a first combining component 172, which is combined with the inner side of the second-first joint component 171 to increase the combining force with the second joint structure 180.

[0121] Furthermore, the second joint structure 180 is formed with a fourth location for fixing the fourth rotation axis 133 , and can be coupled to the first joint structure 170 .

[0122] To this end, the second joint structure 180 includes: a second-second joint component 181, which is formed with a fourth location for fixing the fourth rotating axis 133; a second combining component 182, which is arranged on the inner side of the second-second joint component 181, and increases the combining force between the second-second joint component 181 and the first joint structure 170 as it is combined with the first combining component 172.

[0123] On the other hand, the second joint structure 180 may further include a cam component 183 that can be set to rotate together with the fourth rotating shaft 133, and this cam component 183 rotates together with the fourth rotating shaft 133 during the tilting drive process to limit the maximum tilting angle.

[0124] Furthermore, a portion of the connection shaft 190 can be rotatably connected to the base arm assembly 10 around the vertical rotation axis, and the remaining portion can pass through the first joint structure 170 to be fixed to the second joint structure 180 .

[0125] On the other hand, re-referencing Figure 6 and Figure 7 The external frame 110 is arranged to surround the internal structural elements of the tension arm assembly 100 described above.

[0126] In this embodiment, the external frame 110 includes: a first frame 110a and a second frame 110b, which are combined with each other to surround the support unit 130 and the tension providing unit 120; a third frame 110c and a fourth frame 110d, which are combined with each other to surround the first joint unit 150; and a fifth frame 110e and a sixth frame 110f, which are combined with each other to surround the second joint unit 160.

[0127] At this time, the third frame 110c and the fourth frame 110d and the fifth frame 110e and the sixth frame 110f may be connected to the first frame 110a and the second frame 110b in a tiltable manner, respectively.

[0128] Furthermore, in this embodiment, the tension arm assembly 100 may include a plurality of partition members 116 , which are disposed between the external frame 110 and the tension providing unit 120 and between the external frame 110 and the supporting unit 130 on one side and the other side of the tension arm assembly 100 .

[0129] The partition member 116 is bent as a whole and has elasticity, thereby preventing friction from being generated during the tilting driving action of the tension arm assembly 100 by partitioning the external frame 110 and the tension providing unit 120 and the external frame 110 and the supporting unit 130 .

[0130] and, Fig. 9 and Fig.10 FIG. 1 is a diagram showing a locking structure of a tension arm assembly 100 in a multi-joint lighting device according to an embodiment of the present invention.

[0131] like Fig. 9 and Fig.10 As shown, this embodiment may further include a locking component 113 , which is disposed on the external frame 110 and constrains the tilting action of the tension arm assembly 100 .

[0132] Specifically, in the present embodiment, a through exposure hole 112 is formed in the first frame 110 a , and the locking member 113 is provided in a state where a portion of the locking member 113 is exposed to the outside through the exposure hole 112 .

[0133] Furthermore, a locking portion 115 protruding toward the tension providing unit 120 may be formed on the inner side of the locking component 113 , and a locking hole 122 may be formed in the unit housing 121 of the tension providing unit 120 . The locking hole 122 is recessed so as to lock the locking portion 115 .

[0134] Thus, the user can apply pressure to a portion of the locking component 113 exposed through the exposure hole 112 on the outside of the first frame 110a, so that the locking portion 115 is locked in the locking hole 122. In this case, the movement of the shaft core 124 of the tension providing unit 120 is restricted, thereby constraining the tilting movement of the tension arm assembly 100.

[0135] The preferred embodiments of the present invention have been observed above, and as long as a person skilled in the art of the present invention is skilled in the art, he or she will be able to clearly understand that the present invention can be embodied in other specific forms in addition to the embodiments described above without departing from its purpose or scope. Therefore, the above embodiments are not limited, but should be regarded as illustrative, and thus, the present invention is not limited to the above description, but can be changed within the scope of the scope of the attached invention claims and their equivalents.

Claims

1. A multi-joint lighting device, characterized in that: include: A lighting unit, comprising a light emitting module for irradiating light in a target direction; A head-arm assembly connected to the lighting unit; A base arm assembly connected to a stabilizing base fixed at a preset stabilizing location; as well as A tension arm assembly, one side of which is tiltably connected to the head arm assembly, and the other side of which is tiltably connected relative to the base arm assembly, and provides tension for compensating for the deadweight of the head arm assembly and the lighting unit according to the tilt angle of the head arm assembly, so as to reflect the free stop height adjustment action of the lighting unit.

2. The multi-joint lighting device according to claim 1, characterized in that: The head arm assembly is rotatably connected to the tension arm assembly with a rotation axis in a direction parallel to the extension direction of the tension arm assembly as the center. The head arm assembly is provided with a slip ring module at the connection portion of the tension arm assembly, and the slip ring module maintains the electrical connection between the head arm assembly and the tension arm assembly.

3. The multi-joint lighting device according to claim 1, characterized in that: The lighting unit is rotatably connected to the head-arm assembly with the horizontal rotation axis as the center. A slip ring module is provided at the connection portion between the lighting unit and the head-arm assembly, and the slip ring module maintains the electrical connection between the lighting unit and the head-arm assembly.

4. The multi-joint lighting device according to claim 3, characterized in that: The device further includes a display unit, which is disposed on the head-arm assembly and is used to display a predetermined image and is formed in a manner of rotating relative to the head-arm assembly together with the lighting unit. The display unit comprises: a gyro sensor for detecting an angle formed by the display unit relative to a direction of gravity; and The image control unit controls the image transmitted by the display unit in a rotational manner based on the detection value of the gyro sensor.

5. The multi-joint lighting device according to claim 1, characterized in that: The tension arm assembly comprises: A support unit, providing a support force between the head arm assembly and the base arm assembly; a tension providing unit, arranged side by side with the supporting unit, and providing tension for compensating for the deadweight of the head-arm assembly and the lighting unit according to the tilt angle of the head-arm assembly; a first joint unit, which is arranged in a manner connected to the head-arm assembly and is rotatably fixed to a first rotating shaft on one side of the tension providing unit at a first location, and is rotatably fixed to a second rotating shaft on one side of the supporting unit at a second location spaced apart from the first location; and The second joint unit is arranged in a manner connected to the base arm assembly and is rotatably fixed to a third rotating shaft on the other side of the tension providing unit at a third location, and is rotatably fixed to a fourth rotating shaft on the other side of the supporting unit at a fourth location separated from the third location.

6. The multi-joint lighting device according to claim 5, characterized in that: The tension providing unit comprises: An axis core extending in a direction parallel to the support unit, with the first rotation axis formed on one side of the axis core and the second rotation axis formed on the other side thereof, and formed in a manner of linearly moving toward one side or the other side; an elastic member, which is arranged to surround a portion of the shaft core and is formed in an elastic manner to provide resistance to the compression force; a first stopper member disposed on one side of the elastic member in a manner to move along the axis core and restricted so as to prevent movement to one side beyond any first reference point formed on the axis core; and The second stopper is provided on the other side of the elastic member so as to be movable along the shaft core, and is restricted so as not to move to the other side beyond any second reference point formed on the shaft core.

7. The multi-joint lighting device according to claim 6, characterized in that: The tension providing unit further includes a unit casing that is provided to surround the shaft core and the elastic member and moves together with the shaft core.

8. The multi-joint lighting device according to claim 5, characterized in that: The second joint unit comprises: A first joint structure having a third location formed therein for fixing the third rotating shaft; and The second joint structure is formed with the fourth location for fixing the fourth rotation axis, and is coupled to the first joint structure.

9. The multi-joint lighting device according to claim 8, characterized in that: The second joint unit further includes a connecting shaft, a portion of which is rotatably connected to the base arm assembly with the vertical rotation axis as the center, and the remaining portion passes through the first joint structure to be fixed to the second joint structure.

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